Kanex MIni DisplayPort+USB Audio to HDMI Adapter --NO SOUND

Hi,
I just purchased a Kanex Mini DisplayPort+USB Audio to HDMI Adapter for my new Samsung flat screen so I could watch netflix movies. The guy at Tekserve (NYC based authorized dealer) said it's really cool b/c it's audio and video all in one. Two cables are attached to a small box on one side and on the other side of the box is for the HDMI cable which goes to the TV (most of you prpbably already know this) .
The two attached cables fit into the the USB (audio) + mini display port. The video works great, but no sound. I called Apple for tech support and we tried a few things like changing the sound output to USB, but no luck.
I can call Tekserve on Monday, but would love to figure this out before then for the week-end.
Thanks everyone for your help.
Mary

There are actually 2 different Mini Display port to HDMI adapters from Kanex. One supports 2 channel audio through the USB audio out cable, which is the one you have Mary. The other one with the extra audio plug cable supports 5.1 digital audio.
http://kanexlive.com/products/item.aspx?id=3323
http://kanexlive.com/products/item.aspx?id=3495
I don't have either of these adapters but I would think that you "should" be able to go into your System Preferences under Sound. If the USB plug from the adapter is plugged into your MacBook, then it should show up in the output window in the Sound preferences which you would then choose instead of outputting the sound to the built-in MacBook speakers.
At the bottom of the product description page of the adapter that you have (the USB 2.0 version), it says this:
+Sound Output setting on Macs must be changed to "USB Sound Device/USB Type" to have the adapter operating correctly.+*
Let us know if you get it working properly. I'm considering getting one also.
Sorry.... I just re-read your initial post and it sounds like you already DID try switching the sound output to USB with no luck. The only other thing I can think of is the adapter might be bad and maybe exchange it for another one from where you purchased it. Or you could maybe exchange it for the 5.1 digital audio out version. Although it sounds like your sound is going directly into the tv via HDMI and not a surround sound receiver.
Kanex does have tech support and contact links on their web page. Maybe you should email them directly about your problem. Unfortunately I'm sure you'll have to wait til sometime during the work week to get a reply back.

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Dave I'm glad to say that it works perfectly but I'm embarrassed to say that my 12 year old nephew hooked it up in about 10 minutes.
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I was wondering if someone who already has audio+video output through the mini displayport set up can be so kind and answer the following questions for me:
Can audio be output simultaniously from 3.5mm audio port as well as the mini displayport? That is, if I output both video and audio to my reciever through the 2010 iMac's mini Diplayport, can i use the standard audio output port to provide line input for a further set of (active) speakers (analog would be fine)?
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Message was edited by: Leeon

Anyone?
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Björn Herrmann wrote:
I would even try out crazy adapter combinations if there were any available...
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Hi p,
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just update my progress...
I had made calls to Apple technical support center in HONG KONG for help...
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Fuxking Apple technical support center in HONG KONG
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Kanex MIni DisplayPort+USB Audio to HDMI Adapter --NO SOUND

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